Home / 1,313,882.20-1,971,479.40-745,699.60

Finding the Fourth Proportional to 1,313,882.20, 1,971,479.40 and 745,699.60

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Solution

The fourth proportional to 1,313,882.20, 1,971,479.40 and 745,699.60 is: 1,118,921.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,882.20 : 1,971,479.40 = 745,699.60 : x
  2. Step 2: Convert to fraction form
    1,313,882.20/1,971,479.40 = 745,699.60/x
  3. Step 3: Cross multiply
    1,313,882.20x = 1,971,479.40 × 745,699.60
  4. Step 4: Simplify right side
    1,313,882.20x = 1,470,131,399,988.24
  5. Step 5: Solve for x
    x = 1,470,131,399,988.24/1,313,882.20
  6. Step 6: Final answer
    x = 1,118,921.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.